The Police Commissioner of Arnhem requested that Joël Spier living at 129 Bakenbergseweg in Arnhem be located, detained and brought in. He was suspected of having changed his place of residence without the required authorization. This description referred to Jews who had gone into hiding.
Algemeen Politieblad, nr 5, 4 February 1943, 129, notice 333
The funeral records at the Jewish cemetery in Arnhem reveal that a memorial stone is placed for Joël Spier.